This spell stops an incoming projectile. When cast, it appears as a tiny disc of light blue or white energy, spinning slowly around the caster. The next time the caster is attacked by a ranged weapon, the projectile flies away. Exceptionally big projectiles, such as a giant's boulder, are not entirely put out of direction, so this spell only gives a +2 deflection bonus to AC against such attacks, and is still dispelled. Magic weapons are allowed a save; if they fail, they are put out of direction and if they succeed, they are treated in the same way as exceptionally big items.